This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 3 |
| 3 | 7 |
| 4 | 8 |
| 5 | 17 |
| 6 | 27 |
| 7 | 66 |
| 8 | 67 |
| 9 | 135 |
| 10 | 204 |
| 11 | 479 |
| 12 | 553 |
| 13 | 1182 |
| 14 | 1889 |
| 15 | 4641 |
| 16 | 4642 |
| 17 | 9285 |
| 18 | 13929 |
| 19 | 32504 |
| 20 | 37153 |
| 21 | 78957 |
| 22 | 125414 |
| 23 | 306591 |
| 24 | 311299 |
| 25 | 627308 |
| 26 | 948029 |
| 27 | 2226203 |
| 28 | 2570492 |
| 29 | 5494707 |
| 30 | 8782085 |
| 31 | 21577880 |
| 32 | 21577881 |
| 33 | 43155763 |
| 34 | 64733646 |
| 35 | 151045177 |
| 36 | 172623065 |
| 37 | 366824020 |
| 38 | 582602867 |
| 39 | 1424140365 |